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Y20 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of Y20

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GBT Y20

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Y20 Profile
Y20 Chemical composition
Y20 Mechanical Properties
Y20 Physical Properties
Y20 Heat treatment
Y20 Size Availability
Y20 Relevant products

Profile

This page is mainly introduced the Y20 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of Y20,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Y20

Steel Garde:Y20
Type:Special Alloy
Country:China
Standard:GBT
Application:China structural steel and alloy steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	360～427	σb/MPa
Yield Strength	548	σ 0.2 ≥/MPa
Elongation	58	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	642～810	-
HRC	30	-

Physical Properties

Thermal expansion	18-36	e-6/K
Thermal conductivity	43-73	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	0918-6079	째C
Density	6572-5568	kg/m³
Resistivity	0.50-0.60	Ohm.mm²/m

Heat Treatment Regime

Annealing	Quenching	Tempering	Normalizing	Q & T
√	√	√	√	√

Size Availability

Steel Grade	Specification	Processing range(mm)
Y20 Special Alloy	Round Bar and Hollow Bar	Φ1 to Φ2000
	Square and Flat Steel	Φ10 to Φ100
	Plate and Sheet	0.08-800(Thickness)10-1500(Width)Length
	Tube or Pipe	OD:Φ4-410; WT:1-35 mm; Lenght:10-12000
	Coil and Strip Steel	THK:0.1mm Width:1500mm
	Forged	Ring/Cylindrical/Disk